Core Infrastructure & Distributed System software engineering for C++ Database:

• XCluster Async Replication. Worked on V1 and several iterations of the product: scaling DMLs & runtime DDL management.

• Reliability and Scalability of YB-Master, which handles DDLs & Load Balancing.

• Transactional Integration with SQL Query Parser

Data Pipeline, Cloud Infrastructure, and DevOps for a MarTech data aggregation & query platform during it's growth from Series A to C. First Engineering Management hire.

• Scaled Backend from 4 to 13 engineers, across 2 teams.

• Created initial management structure for Recruiting Pipeline, Release, On-Call, and Metrics.

• Team Accomplishments:

1. Defined initial system SLA metrics. Transitioned On-Call from manual inspection to stable, metrics-based alerts.

2. Stabilized Engineering-wide software release to weekly cadence

3. Decoupled OLTP in-memory query engine from OLAP pipeline. AWS Cost Efficiency & Reliability wins via V1 elastic cluster.

Network & Data Storage APIs for Facebook (FB) iOS Mobile Application. Production systems include a data storage & pubsub engine (GraphQLStore), a mobile networking stack (ProxyGen API), and ReactJS native data synchronization.

• Recruited and managed a 12-person team, starting as first engineer.

• Refactored systems within bi-weekly release constraints (300+M DAU).

• Doubled app stability as part of CEO-driven mobile reliability push.

• Converted systems to Cross-Platform C++ and integrated into Android FB app.

Part of 5-person landing team that established NY Engineering office. Organized new hire bootcamp, directed intern program (100+), and manager Infrastructure recruiting pipeline (+30 YOY). Led Site Building program for Fall 2015, with ~250 engineers.

HBase Team, an Apache Distributed NoSQL Database. Part of initial team founding.

• Powered V1 FB Messenger (500M+ DAU), Time-Series DB, and Ads Analytics.

• Improved HBase core features: Compaction Algorithms, Bloom Filters, MVCC.

• Customized HDFS distributed filesystem for HBase.

• Delivered HBase Replication, Migration, and Disaster Recovery as Tech Lead.